Item

DT65

DT70

DT75

DT85

Al2O3(%); ≥

65

70

75

85

Specific Gravity (g/cm3)≥

2.2

2.3

2.5

2.8

Unit Weight(Kg/ m3)

1550~1600

1600~1650

1600~1750

1650~1700

Specific Surface Area( m2/ m3)

200~220

coefficient of thermal expansion (3)(×10-6/°C) ;≥

6.0

6.5

7

8

specific heat capacity(×103/Kg K)

1.1

1.1

1.0

1.0

1100°C Water Cooling(Times);≥

30

30

30

20

Applicable Temperature (°C);≤

1450

1550

1650

1750